Danfoss FC 51 Operating guide

Operating Guide

VLT® Micro Drive FC 51

vlt-drives.danfoss.com

VLT® Micro Drive FC 51

Operating Guide

Contents

1

Introduction 5

1.1

Purpose of this Operating Guide 5

Additional Resources 5

1.2

Type Approvals and Certifications 5

1.3

1.4

IT Mains 5

1.5

Disposal 5

1.6

CE Declaration 6

Safety 7

2

Safety Symbols 7

2.1

Qualified Personnel 7

2.2

Safety Precautions 7

2.3

Safety Instructions 9

2.4

Contents

Installation 10

3

Before Commencing Repair Work 10

3.1

3.2

Side-by-side Installation 10

3.3

Mechanical Dimensions 10

3.4

Electrical Installation in General 11

3.5

Fuses 11

3.5.1

Branch Circuit Protection 11

3.5.2

Short-circuit Protection 11

3.5.3

Overcurrent Protection 12

3.5.4

Non-UL Compliance 12

3.5.5

Recommendation of Fuses 12

3.6

Connecting to Mains and Motor 13

3.7

Control Terminals 13

3.8

Power Circuit 16

3.9

Load Sharing/Brake 16

4

Programming 18

4.1

Local Control Panel (LCP) 18

4.2

Programming on Automatic Motor Tuning (AMT) 19

4.2.1

Mode 1 19

4.2.2

Mode 2 19

5

Parameter Overview 20

5.1

Parameter List 20

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VLT® Micro Drive FC 51

Operating Guide

6

Troubleshooting 25

Warnings and Alarms 25

6.1

Specifications 27

7

Mains Supply 1x200–240 V AC 27

7.1

Mains Supply 3x200–240 V AC 27

7.2

Mains Supply 3x380–480 V AC 28

7.3

8

General Technical Data 31

8.1

Protection and Features 31

8.2

Mains Supply (L1/L, L2, L3/N) 31

8.3

Motor Output (U, V, W) 31

Cable Length and Cross-section 31

8.4

Digital Inputs (Pulse/encoder Inputs) 31

8.5

Analog Inputs 32

8.6

Contents

Analog Outputs 32

8.7

8.8

RS485 Serial Communication 32

8.9

Control Card, 24 V DC Output 32

8.10

Relay Output 32

8.11

Control Card, +10 V DC Output 33

8.12

Surroundings 33

9

Special Conditions 34

9.1

Derating for Ambient Temperature 34

9.2

Derating for Low Air Pressure 34

9.3

Derating for Running at Low Speeds 34

10

Options and Spare Parts 35

10.1

List of Options and Spare Parts 35

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089

Do not dispose of equipment containing electrical components together with domestic waste.
Collect it separately in accordance with local and currently valid legislation.

VLT® Micro Drive FC 51

Operating Guide

Introduction

1 Introduction

1.1 Purpose of this Operating Guide

This Operating Guide provides information for safe installation and commissioning of the AC drive. It is intended for use by qualified
personnel.

Read and follow the instructions to use the drive safely and professionally.
Pay particular attention to the safety instructions and general warnings. Always keep this Operating Guide with the drive.
VLT® is a registered trademark for Danfoss A/S.

1.2 Additional Resources

Other resources are available to understand advanced drive functions and programming.

•

The Programming Guide provides greater detail on working with parameters and many application examples.

•

The Design Guide provides detailed information about capabilities and functionality to design motor control systems.

•

Instructions for operation with optional equipment and replacement of components.

Supplementary publications and manuals are available at:

1.3 Type Approvals and Certifications

www.danfoss.com.

For more information on UL 508C thermal memory retention requirements, refer to the section Motor Thermal Protection in the
product-specific Design Guide.

1.4 IT Mains

N O T I C E

IT MAINS

Installation on isolated mains source, that is IT mains. Maximum supply voltage allowed when connected to mains: 440 V.

As an option, Danfoss offers recommended line filters for improved harmonics performance. See chapter Options and Spare Parts.

1.5 Disposal

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VLT® Micro Drive FC 51

Operating Guide

1.6 CE Declaration

Introduction

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VLT® Micro Drive FC 51

Operating Guide

2 Safety

2.1 Safety Symbols

The following symbols are used in this manual:

D A N G E R

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

W A R N I N G

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

C A U T I O N

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

N O T I C E

Indicates information considered important, but not hazard-related (for example, messages relating to property damage).

Safety

2.2 Qualified Personnel

To allow trouble-free and safe operation of the unit, only qualified personnel with proven skills are allowed to transport, store, as­semble, install, program, commission, maintain, and decommission this equipment.

Persons with proven skills:

•

Are qualified electrical engineers, or persons who have received training from qualified electrical engineers and are suitably
experienced to operate devices, systems, plant, and machinery in accordance with pertinent laws and regulations.

•

Are familiar with the basic regulations concerning health and safety/accident prevention.

•

Have read and understood the safety guidelines given in all manuals provided with the unit, especially the instructions given in
the Operating Guide.

•

Have good knowledge of the generic and specialist standards applicable to the specific application.

2.3 Safety Precautions

W A R N I N G

HIGH VOLTAGE

AC drives contain high voltage when connected to AC mains input, DC supply, or load sharing. Failure to perform installation,

start-up, and maintenance by qualified personnel can result in death or serious injury.

Only qualified personnel must perform installation, start-up, and maintenance.

-

W A R N I N G

UNINTENDED START

When the drive is connected to the AC mains, DC supply, or load sharing, the motor may start at any time, causing risk of death,

serious injury, and equipment or property damage. The motor may start by activation of an external switch, a fieldbus command,

an input reference signal from the LCP or LOP, via remote operation using MCT 10 Set-up software, or after a cleared fault condi-

tion.

Press [Off] on the LCP before programming parameters.

-

Disconnect the drive from the mains whenever personal safety considerations make it necessary to avoid unintended motor

-

start.

Check that the drive, motor, and any driven equipment are in operational readiness.

-

AQ276736419659en-000101 / 132R0029 | 7Danfoss A/S © 2021.05

Size

Minimum waiting time (minutes)

M1, M2, and M3

4

M4 and M5

15

VLT® Micro Drive FC 51

Operating Guide

Safety

N O T I C E

The [Off/Reset] key is not a safety switch. It does not disconnect the drive from mains.

W A R N I N G

DISCHARGE TIME

The drive contains DC-link capacitors, which can remain charged even when the drive is not powered. High voltage can be

present even when the warning indicator lights are off.

Failure to wait the specified time after power has been removed before performing service or repair work could result in death or

serious injury.

Stop the motor.

-

Disconnect AC mains, permanent magnet type motors, and remote DC-link supplies, including battery back-ups, UPS, and

-

DC-link connections to other drives.

Wait for the capacitors to discharge fully. The minimum waiting time is specified in the table Discharge time and is also visible

-

on the nameplate on top of the drive.

Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors

-

are fully discharged.

Table 1: Discharge Time

Leakage current (>3.5 mA)

Follow national and local codes regarding protective earthing of equipment with a leakage current >3.5 mA. AC drive technology
implies high frequency switching at high power. This generates a leakage current in the ground connection. A fault current in the
drive at the output power terminals might contain a DC component, which can charge the filter capacitors and cause a transient
ground current. The ground leakage current depends on various system configurations including RFI filtering, shielded motor ca­bles, and drive power.

EN/IEC61800-5-1 (Power Drive System Product Standard) requires special care if the leakage current exceeds 3.5 mA. Reinforce
Grounding in 1 of the following ways:

•

Grounding wire of at least 10 mm2 (8 AWG).

•

2 separate ground wires both complying with the dimensioning rules.

See EN 60364-5-54 § 543.7 for further information.

Using RCDs

Where residual current devices (RCDs), also known as earth leakage circuit breakers (ELCBs), are used, comply with the following:

•

Use RCDs of type B that can detect AC and DC currents.

•

Use RCDs with an inrush delay to prevent faults due to transient ground currents.

•

Dimension RCDs according to the system configuration and environmental considerations.

Motor thermal protection

Motor overload protection is possible by setting parameter 1-90 Motor Thermal Protection to [4] ETR trip. For the North American
market: Implemented ETR function provides class 20 motor overload protection, in accordance with NEC.

Installation at high altitudes

For altitudes above 2000 m (6562 ft), contact Danfoss regarding PELV.

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VLT® Micro Drive FC 51

Operating Guide

2.4 Safety Instructions

•

Make sure that the drive is properly grounded.

•

Do not remove mains connections, motor connections, or other power connections while the drive is connected to power.

•

Protect users against supply voltage.

•

Protect the motor against overloading according to national and local regulations.

Safety

AQ276736419659en-000101 / 132R0029 | 9Danfoss A/S © 2021.05

B

a

A

a A

a A

a A

a A

C

C

C C

C

b

B
b

B
b

B
b

B
b

Ø 7mm

M5

M4

M3

M2

M1

Ø 7mm Ø 5.5mm Ø 4.5mm

e30bb321.11

Ø 4.5mm

Enclo­sure

Power [kW (hp)]

Height [mm (in)]

Width [mm (in)]

Depth
[mm
(in)]

(1)

Maximum
weight [kg
(lb)]

1x200–
240 V

3x200–
240 V

3x380–
480 V

A

A (includ­ing de­coupling
plate)

aBb

C

M1

0.18–0.75
(0.24–1.0)

0.25–0.75
(0.34–1.0)

0.37–0.75
(0.5–1.0)

150
(5.9)

205 (8.1)

140.4
(5.5)70(2.8)55(2.2)

148 (5.8)

1.1 (2.4)

M2

1.5 (2.0)

1.5 (2.0)

1.5–2.2 (2.0–

3.0)

176
(6.9)

230 (9.1)

166.4
(6.6)75(3.0)59(2.3)

168 (6.6)

1.6 (3.5)

VLT® Micro Drive FC 51

Operating Guide

Installation

3 Installation

3.1 Before Commencing Repair Work

Procedure

1.

Disconnect the drive from mains (and external DC supply, if present).

2.

Wait for 4 minutes (M1, M2, and M3) and 15 minutes (M4 and M5) for discharge of the DC-link.

3.

Disconnect the DC bus terminals and the brake terminals (if present).

4.

Remove the motor cable.

3.2 Side-by-side Installation

The drive can be mounted side by side for IP20 rating units and requires 100 mm (3.9 in) clearance above and below for cooling.
Refer to chapter Specifications for details on environmental ratings of the drive.

3.3 Mechanical Dimensions

A template for drilling is found on the flap of the packaging.

Illustration 1: Mechanical Dimensions

Table 2: Mechanical Dimensions

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Enclo­sure

Power [kW (hp)]

Height [mm (in)]

Width [mm (in)]

Depth
[mm
(in)]

(1)

Maximum
weight [kg
(lb)]

1x200–
240 V

3x200–
240 V

3x380–
480 V

A

A (includ­ing de­coupling
plate)

aBb

C

M3

2.2 (3.0)

2.2–3.7
(3.0–5.0)

3.0–7.5 (4.0–

10)

239
(9.4)

294 (11.6)

226
(8.9)90(3.5)69(2.7)

194 (7.6)

3.0 (6.6)

M4––

11.0–15.0
(15–20)

292
(11.5)

347.5
(13.7)

272.4
(10.7)

125
(4.9)97(3.8)

241 (9.5)

6.0 (13.2)

M5––

18.5–22.0
(25–30)

335
(13.2)

387.5
(15.3)

315
(12.4)

165
(6.5)

140
(5.5)

248 (9.8)

9.5 (20.9)

Power [kW (hp)]

Torque [Nm (in-lb)]

Enclo­sure

1x200–
240 V

3x200–
240 V

3x380–480 V

Line

Motor

DC connec­tion/brake

Control
terminals

Ground

Relay

M1

0.18–0.75
(0.24–1.0)

0.25–0.75
(0.34–1.0)

0.37–0.75 (0.5–

1.0)

0.8 (7.1)

0.7 (6.2)

Spade

(1)

0.15 (1.3)

3 (26.6)

0.5 (4.4)

M2

1.5 (2.0)

1.5 (2.0)

1.5–2.2 (2.0–

3.0)

0.8 (7.1)

0.7 (6.2)

Spade

(1)

0.15 (1.3)

3 (26.6)

0.5 (4.4)

M3

2.2 (3.0)

2.2–3.7 (3.0–

5.0)

3.0–7.5 (4.0–

10)

0.8 (7.1)

0.7 (6.2)

Spade

(1)

0.15 (1.3)

3 (26.6)

0.5 (4.4)

M4––

11.0–15.0 (15–

20)

1.3 (11.5)

1.3 (11.5)

1.3 (11.5)

0.15 (1.3)

3 (26.6)

0.5 (4.4)

M5––

18.5–22.0 (25–

30)

1.3 (11.5)

1.3 (11.5)

1.3 (11.5)

0.15 (1.3)

3 (26.6)

0.5 (4.4)

VLT® Micro Drive FC 51

Operating Guide

1

For LCP with potentiometer, add 7.6 mm (0.3 in).

3.4 Electrical Installation in General

Installation

N O T I C E

All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper conduc-

tors required, 60–75 °C (140–167 °F) recommended.

Table 3: Tightening of Terminals

1

Spade connectors (6.3 mm (0.25 in) Faston plugs).

3.5 Fuses

3.5.1 Branch Circuit Protection

To prevent fire hazards, protect the branch circuits in an installation, switch gear, machines, and so on, against short circuits and
overcurrent. Follow national and local regulations.

3.5.2 Short-circuit Protection

Use the Danfoss recommended fuses to protect service personnel or other equipment if there is an internal failure in the unit or
short circuit on DC-link. If there is a short circuit on the motor or brake output, the drive provides full short-circuit protection.

AQ276736419659en-000101 / 132R0029 | 11Danfoss A/S © 2021.05

FC 51

Maximum fuses UL

Maximum fuses non–
UL

Bussmann

Bussmann

Bussmann

Littelfuse

Ferraz Shawmut

Ferraz Shawmut

kW

Type RK1

Type J

Type T

Type RK1

Type CC

Type RK1

Type gG

1x200–240 V

PK18–PK37

KTN-R15

JKS-15

JJN-15

KLN-R15

ATM-R15

A2K-15R

16A

PK75

KTN-R25

JKS-25

JJN-25

KLN-R25

ATM-R25

A2K-25R

25A

P1K5

KTN-R35

JKS-35

JJN-35

KLN-R35

–

A2K-35R

35A

P2K2

KTN-R50

JKS-50

JJN-50

KLN-R50

–

A2K-50R

50A

3x200–240 V

PK25

KTN-R10

JKS-10

JJN-10

KLN-R10

ATM-R10

A2K-10R

10A

PK37

KTN-R15

JKS-15

JJN-15

KLN-R15

ATM-R15

A2K-15R

16A

PK75

KTN-R20

JKS-20

JJN-20

KLN-R20

ATM-R20

A2K-20R

20A

P1K5

KTN-R25

JKS-25

JJN-25

KLN-R25

ATM-R25

A2K-25R

25A

P2K2

KTN-R40

JKS-40

JJN-40

KLN-R40

ATM-R40

A2K-40R

40A

P3K7

KTN-R40

JKS-40

JJN-40

KLN-R40

–

A2K-40R

40A

3x380–480 V

PK37–PK75

KTS-R10

JKS-10

JJS-10

KLS-R10

ATM-R10

A6K-10R

10A

P1K5

KTS-R15

JKS-15

JJS-15

KLS-R15

ATM-R15

A2K-15R

16A

P2K2

KTS-R20

JKS-20

JJS-20

KLS-R20

ATM-R20

A6K-20R

20A

P3K0

KTS-R40

JKS-40

JJS-40

KLS-R40

ATM-R40

A6K-40R

40A

P4K0

KTS-R40

JKS-40

JJS-40

KLS-R40

ATM-R40

A6K-40R

40A

P5K5

KTS-R40

JKS-40

JJS-40

KLS-R40

–

A6K-40R

40A

P7K5

KTS-R40

JKS-40

JJS-40

KLS-R40

–

A6K-40R

40A

P11K

KTS-R60

JKS-60

JJS-60

KLS-R60

–

A6K-60R

63A

VLT® Micro Drive FC 51

Operating Guide

Installation

3.5.3 Overcurrent Protection

To avoid overheating of the cables in the installation, provide overload protection. Always carry out overcurrent protection accord­ing to national regulations. Fuses must be designed for protection in a circuit capable of supplying a maximum of 100000 A
(symmetrical), 480 V maximum.

rms

3.5.4 Non-UL Compliance

If UL/cUL is not to be complied with, use the fuses mentioned in this chapter, which ensure compliance with EN50178/IEC61800-5-1.
If there is a malfunction, not following the fuse recommendation may result in damage to the drive and the installation.

3.5.5 Recommendation of Fuses

Table 4: Fuses

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